6191171739648 has 1680 divisors, whose sum is σ = 23306644532160. Its totient is φ = 1599531909120.

The previous prime is 6191171739647. The next prime is 6191171739659. The reversal of 6191171739648 is 8469371711916.

6191171739648 is a `hidden beast` number, since 6 + 191 + 1 + 7 + 17 + 396 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (6191171739647) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 84810571740 + ... + 84810571812.

Almost surely, 2^{6191171739648} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6191171739648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11653322266080).

6191171739648 is an abundant number, since it is smaller than the sum of its proper divisors (17115472792512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6191171739648 is an equidigital number, since it uses as much as digits as its factorization.

6191171739648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 135 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 63.

The spelling of 6191171739648 in words is "six trillion, one hundred ninety-one billion, one hundred seventy-one million, seven hundred thirty-nine thousand, six hundred forty-eight".